"GSV 3 minds in a can" wrote:

Just my observation, the new victoria line trains seem to crawl to the
next station wait for an eternity then crawl off again.
This has happened on the last 3 times I have used this line. The old
trains seemed to have much faster journey times with more comfortable
seats.
Also on the met line the new train goes at a snails pace. The journey
from baker street to Wembley park was painfully slow.


Why is this?

The Victoria line is still on the old signalling system - things will speed
up when the new system goes live (and the new trains are unleashed). However
the new 09 stock trains at present are not any slower than the old 67 stock
trains - just sounds as though you got a bit unlucky in getting caught up in
some congestion (of the sort that should hopefully not happen, at least not
so much, with the new signalling system).

The Met line again is still on the old signalling system (elements of which
are *really* old) - the new system is coming, but still some way down the
pipeline.

The performance of both sets of new stock is (UIVMM) superior to the old
stock it has replaced / is replacing - it's just all about the new
signalling systems being in place to support that superior performance.